#3BB8A5
Closest named color: Topaz (#13BBAF). oklch(71% 0.112 180.7), rgb(59, 184, 165).
Aa
Black text reads best on this color (8.58:1).
About this color
#3BB8A5 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 71%, its chroma 0.112 and its hue 181°. Its hue sits on the cool side of the wheel. The nearest named color is Topaz (#13BBAF), ΔE 0.017 away. Black text reads best on it, at 8.58:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.112) |
| Temperature | cool |
| Nearest name | Topaz (#13BBAF) |
| Black text | 8.58:1 |
| White text | 2.44:1 |
Values
| HEX | #3BB8A5 |
| RGB | rgb(59, 184, 165) |
| HSL | hsl(171, 51%, 48%) |
| OKLCH | oklch(71% 0.112 180.7) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #3BB8A5 | 2.44:1 | Fails | Lc -52.8 | Large or bold text, headings |
| Black text on #3BB8A5 | 8.58:1 | AAA | Lc 56.2 | Large or bold text, headings |
| #3BB8A5 text on white | 2.44:1 | Fails | Lc 47.8 | Large or bold text, headings |
| #3BB8A5 text on black | 8.58:1 | AAA | Lc -54.2 | Large or bold text, headings |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 400.
-
Step 50
50
#EFF8F6
oklch(97.2% 0.01 181.4)
-
Step 100
100
#DCEFEA
oklch(93.7% 0.021 178.3)
-
Step 200
200
#BEE2DA
oklch(88.5% 0.039 180.4)
-
Step 300
300
#8ED0C3
oklch(81% 0.07 180.8)
-
Step 400
400 (this color)
#3BB8A5
oklch(71% 0.112 180.7)
-
Step 500
500
#009F8D
oklch(63% 0.114 181)
-
Step 600
600
#008676
oklch(55.6% 0.1 180.5)
-
Step 700
700
#007163
oklch(49.2% 0.089 180.3)
-
Step 800
800
#005C51
oklch(42.6% 0.077 181.1)
-
Step 900
900
#004D43
oklch(37.7% 0.068 180.3)
-
Step 950
950
#002E28
oklch(27% 0.049 181.5)
#3BB8A5 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #B0ADA4 | 0.118 |
| Deuteranopia (no green cones) | #9EA0A7 | 0.113 |
| Tritanopia (no blue cones) | #00BBB2 | 0.021 |
| Achromatopsia (no color) | #A6A6A6 | 0.113 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3BB8A5
#3BB8A5
oklch(71% 0.112 180.7)
- #DA839E
#DA839E
oklch(71% 0.111 0.3)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #3BB8A5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Topaz #13BBAF ΔE 0.017
- Greeny Blue #42B395 ΔE 0.023
- Light Sea Green #20B2AA ΔE 0.025
- Green Blue #01C08D ΔE 0.051
- Turquoise Blue #06B1C4 ΔE 0.057
- Tea #65AB7C ΔE 0.058
- Greenblue #23C48B ΔE 0.060
- Bluey Green #2BB179 ΔE 0.063
Use #3BB8A5 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.